Åke Söderblom
Hans Lövgren
Margareta Fahlén
Gabriella Strandberg
Olof Winnerstrand
Claes-Herman Sundelius
Barbro Larsson
Diana Sundelius
Douglas Håge
Oscar
Börje Mellvig
Stenström
Sven Lindberg
Lovén, Zoologist
Jeanne Fusier-Gir
Lövgren's Housemaid
Pierre Bertin
UNESCO Director-General
René Alié
Policeman (uncredited)
Odette Barencey
Woman (uncredited)
Albert Bour
Fish Salesman (uncredited)
Gil Delamare
Policeman (uncredited)
Moustache
Oscar the Seal (uncredited)
Rognoni
Zoo Owner (uncredited)
Pierre Sergeol
Restaurant Owner (uncredited)
Made Siamé
Fish Seller (uncredited)
Åke Ohberg
Pierre Billon
Min vän Oscar
Released
Bande-annonce